[one-users] Ganglia integration

[Duverne, Cyrille]

Hello Valentin, Olivier,

The sFlow seems to be exactly what I'm looking for, i'll launch an
implementation and keep you posted of the result.

Thanks a lot.
Cyrille

Vendredi 14/12/2012 à 11:25 Valentin Bud a écrit:

Hello World,

On Friday, December 14, 2012, Olivier Sallou wrote:

Le 12/14/12 9:32 AM, Duverne, Cyrille a écrit :

 Hello Olivier,

Thanks for this feedback.

My request wasn't clear enough, I already monitor my hosts and I see
the OPENNEBULA-VMS-INFORMATION variable in Ganglia, but I don't know
how to use it to provide graphs on the VM usage.

Will the VM information be displayed in Sunstone ? In Ganglia ? 

 OPENNEBULA-VMS-INFORMATION  provides global VM status information to
opennebula. Some graphs are available in Sunstone to monitor the VM
help with this data (when you click on your vm in suntone)

If you want Ganglia monitoring of your VM, you have to setup gmond in
the VM itself.

Or one can use Host sFlow [1] to gather CPU, RAM and network
statistics. There is a blog post [2] describing the installation
procedure. Works with Ganglia 3.2+. If you need other metrics you'd
have to install gmond inside the VM. Enjoy.

[1]: http://host-sflow.sourceforge.net/
[2]: http://blog.sflow.com/2012/01/using-ganglia-to-monitor-virtual.html

v

Olivier

Any help is welcome on this.

Cheers
Cyrille

Jeudi 13/12/2012 à 17:31 Olivier Sallou a écrit:

Le 12/13/12 3:27 PM, Duverne, Cyrille a écrit :

 Dear mailing-list, (these days it's like saying "dear Santa," :) )

I've set up a ganglia environment in my lab and can see the monitoring
information for my hosts.

I've followed the manual about ganglia integration and updated the
nodes, updated oned.conf, created the cron as follow :

*/1 * * * * oneadmin gmetric -n OPENNEBULA_VMS_INFORMATION -t string
-v `/var/lib/one/remotes/vmm/kvm/poll --kvm`

I've updated the probe file to point to my central ganglia server.

But I can't see anything on Ganglia web.

I might be missing something on the ganglia server side... but what ?
Where are the VM information defines for Ganglia to display them ?

 Ganglia does not provide graphics for the VMs with opennebula.  VM
information are stored in a variable accessible for each  host  with
name OPENNEBULA_VMS_INFORMATION (base64 encoded).
Then opennebula will trigger ganglia to get the status of the VMs
running on this host.

OpenNebula uses Ganglia to extract the information, and not the
contrary

If you want to monitor your host with Ganglia you can use standard
metrics provided by gmetric (cpu,ram,....)

Olivier

Thanks in advance for your feedback
Cheers
Cyrille

_______________________________________________ Users mailing list
Users at lists.opennebula.org
http://lists.opennebula.org/listinfo.cgi/users-opennebula.org  

-- Olivier Sallou IRISA / University of Rennes 1 Campus de Beaulieu,
35000 RENNES - FRANCE Tel: 02.99.84.71.95 gpg key id: 4096R/326D8438
(keyring.debian.org [1]) Key fingerprint = 5FB4 6F83 D3B9 5204 6335
D26D 78DC 68DB 326D 8438  

-- Olivier Sallou IRISA / University of Rennes 1 Campus de Beaulieu,
35000 RENNES - FRANCE Tel: 02.99.84.71.95 gpg key id: 4096R/326D8438
(keyring.debian.org [1]) Key fingerprint = 5FB4 6F83 D3B9 5204 6335
D26D 78DC 68DB 326D 8438  



Links:
------
[1] http://keyring.debian.org

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opennebula.org/pipermail/users-opennebula.org/attachments/20121214/6dcb6e65/attachment-0002.htm>